Report this forum post

DTC 522655-1 - Short Term Closed Loop Correction Bank 1 Greater Than NOR 40% (Lean Engine Operation)

Common problems that may cause lean codes:

- Contaminated/clogged trim fuel injector's filter and/or LPG regulator's filter
- Contaminated/clogged trim fuel injector
- Faulty trim fuel injector or wiring
- Contaminated LPG fuel
- Low primary LPG fuel pressure (for trim fuel injector)
- Low secondary LPG fuel pressure (for carburetor)
- Clogged fuel hoses
- Contaminated/dirty carburetor
- Faulty fuel shutoff solenoids
- Engine overheating
- Exhaust leaks prior to or near oxygen (O2) sensor
- Manifold vacuum leaks
- Improper ECU grounds on engine block
- Faulty ECU injector driver 2
  • Posted 7 Jun 2014 06:46
  • By swoop223
  • joined 23 Mar'12 - 3,692 messages
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.

Indicates mandatory field
Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY

PREMIUM business

Zhejiang UN Forklift Co., Ltd
Manufacturer of IC forklifts, electric forklifts and warehouse equipment.
Global Industry News
edition #1252 - 16 October 2025
In this week’s Forkliftaction News , we report on the GEP Global Supply Chain Volatility Index which shows Asian supply chains are at their busiest since June 2022 while the US and Europe’s supply chains remain under-utilised. One of the report authors describes the situation as being “as stable as it’s going to get”... Continue reading
Fact of the week
Brussels Airport in Belgium, Europe is the world's largest sales point for chocolate, with over 800 tonnes of chocolate sold annually. This averages out to about 1.5 kilograms sold every minute.